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ADS1158

AKTIV

16-kanaliger Delta-Sigma-ADC, 16 Bit, 125 kSPS, mit schnellem Kanalscan und automatischem Sequenzer

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ADS1158

AKTIV
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Produktdetails

Resolution (Bits) 16 Sample rate (max) (ksps) 125 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.85, 5.35 Input voltage range (min) (V) -2.7, 0 Features GPIO, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 42 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.5 Digital supply (max) (V) 3.6
Resolution (Bits) 16 Sample rate (max) (ksps) 125 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.85, 5.35 Input voltage range (min) (V) -2.7, 0 Features GPIO, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 42 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.5 Digital supply (max) (V) 3.6
VQFNP (RTC) 48 49 mm² (7 mm × 7 mm)
  • 16 Bits, No Missing Codes
  • Fixed-Channel or Automatic Channel Scan
  • Fixed-Channel Data Rate: 125kSPS
  • Auto-Scan Data Rate: 23.7kSPS/Channel
  • Single-Conversion Settled Data
  • 16 Single-Ended or 8 Differential Inputs
  • Unipolar (+5V) or Bipolar (±2.5V) Operation
  • 0.3LSB (INL)
  • DC Stability:
    1µV/°C Offset Drift, 2ppm/°C Gain Drift
  • Open-Sensor Detection
  • Conversion Control Pin
  • Multiplexer Output for External Signal Conditioning
  • On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
  • 42mW Power Dissipation
  • Standby, Sleep, and Power-Down Modes
  • Eight General-Purpose Inputs/Outputs (GPIO)
  • 32.768kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems

    SPI is a trademark of Motorola, Inc.
    All other trademarks are the property of their respective owners.
    • 16 Bits, No Missing Codes
    • Fixed-Channel or Automatic Channel Scan
    • Fixed-Channel Data Rate: 125kSPS
    • Auto-Scan Data Rate: 23.7kSPS/Channel
    • Single-Conversion Settled Data
    • 16 Single-Ended or 8 Differential Inputs
    • Unipolar (+5V) or Bipolar (±2.5V) Operation
    • 0.3LSB (INL)
    • DC Stability:
      1µV/°C Offset Drift, 2ppm/°C Gain Drift
    • Open-Sensor Detection
    • Conversion Control Pin
    • Multiplexer Output for External Signal Conditioning
    • On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
    • 42mW Power Dissipation
    • Standby, Sleep, and Power-Down Modes
    • Eight General-Purpose Inputs/Outputs (GPIO)
    • 32.768kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems

    SPI is a trademark of Motorola, Inc.
    All other trademarks are the property of their respective owners.

    The ADS1158 is a 16-channel (multiplexed), low-noise, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

    The differential output of the multiplexer is accessible to allow signal conditioning before the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

    An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.

    Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

    Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

    The ADS1158 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1158 is available in a QFN-48 package.

    The ADS1158 is a 16-channel (multiplexed), low-noise, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

    The differential output of the multiplexer is accessible to allow signal conditioning before the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

    An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.

    Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

    Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

    The ADS1158 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1158 is available in a QFN-48 package.
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    Technische Dokumentation

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    Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
    * Datenblatt 16-Channel, 16-Bit Analog-to-Digital Converter datasheet (Rev. D) 17.03.2011
    Anwendungshinweis Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18.03.2024
    Anwendungshinweis A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 13.03.2024
    Anwendungshinweis QFN and SON PCB Attachment (Rev. C) PDF | HTML 06.12.2023
    Anwendungshinweis Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29.03.2023
    E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 19.06.2020
    Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 19.09.2016
    E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19.03.2015
    Anwendungshinweis ADS1258, ADS1258-EP, and ADS1158 SPI™ Timeout Function 20.04.2012
    Analog Design Journal How delta-sigma ADCs work, Part 2 09.11.2011

    Design und Entwicklung

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    Support-Software

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